1 /*** coff information for the powerpc. */
4 /********************** FILE HEADER **********************/
6 struct external_filehdr
{
7 char f_magic
[2]; /* magic number */
8 char f_nscns
[2]; /* number of sections */
9 char f_timdat
[4]; /* time & date stamp */
10 char f_symptr
[4]; /* file pointer to symtab */
11 char f_nsyms
[4]; /* number of symtab entries */
12 char f_opthdr
[2]; /* sizeof(optional hdr) */
13 char f_flags
[2]; /* flags */
17 * F_RELFLG relocation info stripped from file
18 * F_EXEC file is executable (no unresolved external references)
19 * F_LNNO line numbers stripped from file
20 * F_LSYMS local symbols stripped from file
21 * F_AR32WR file has byte ordering of an AR32WR machine (e.g. vax)
24 #define F_RELFLG (0x0001)
25 #define F_EXEC (0x0002)
26 #define F_LNNO (0x0004)
27 #define F_LSYMS (0x0008)
29 /* made this one up by looking at the .o on the ppc nt box */
32 /* extra NT defines */
33 #define DOSMAGIC 0x5a4d
34 #define NT_SIGNATURE 0x00004550
36 #define PPCBADMAG(x) ((x).f_magic != PPCMAGIC)
38 #define FILHDR struct external_filehdr
39 #define FILHSZ sizeof(FILHDR)
42 /********************** AOUT "OPTIONAL HEADER" **********************/
47 char magic
[2]; /* type of file */
48 char vstamp
[2]; /* version stamp */
49 char tsize
[4]; /* text size in bytes, padded to FW bdry*/
50 char dsize
[4]; /* initialized data " " */
51 char bsize
[4]; /* uninitialized data " " */
52 char entry
[4]; /* entry pt. */
53 char text_start
[4]; /* base of text used for this file */
54 char data_start
[4]; /* base of data used for this file */
61 /* Blindly imported from coff-i386.h (krk) */
63 #define AOUTSZ (sizeof(AOUTHDR))
65 #define OMAGIC 0404 /* object files, eg as output */
66 #define ZMAGIC 0413 /* demand load format, eg normal ld output */
67 #define STMAGIC 0401 /* target shlib */
68 #define SHMAGIC 0443 /* host shlib */
71 /* define some NT default values */
72 /* #define NT_IMAGE_BASE 0x400000 moved to internal.h */
73 #define NT_SECTION_ALIGNMENT 0x1000
74 #define NT_FILE_ALIGNMENT 0x200 /* 0x1000 */ /* 0x200 */
75 #define NT_DEF_RESERVE 0x100000
76 #define NT_DEF_COMMIT 0x1000
78 /********************** SECTION HEADER **********************/
81 struct external_scnhdr
{
82 char s_name
[8]; /* section name */
83 char s_paddr
[4]; /* physical address, aliased s_nlib */
84 char s_vaddr
[4]; /* virtual address */
85 char s_size
[4]; /* section size */
86 char s_scnptr
[4]; /* file ptr to raw data for section */
87 char s_relptr
[4]; /* file ptr to relocation */
88 char s_lnnoptr
[4]; /* file ptr to line numbers */
89 char s_nreloc
[2]; /* number of relocation entries */
90 char s_nlnno
[2]; /* number of line number entries*/
91 char s_flags
[4]; /* flags */
94 #define SCNHDR struct external_scnhdr
95 #define SCNHSZ sizeof(SCNHDR)
98 * names of "special" sections
100 #define _TEXT ".text"
101 #define _DATA ".data"
103 #define _COMMENT ".comment"
106 /********************** LINE NUMBERS **********************/
108 /* 1 line number entry for every "breakpointable" source line in a section.
109 * Line numbers are grouped on a per function basis; first entry in a function
110 * grouping will have l_lnno = 0 and in place of physical address will be the
111 * symbol table index of the function name.
113 struct external_lineno
{
115 char l_symndx
[4]; /* function name symbol index, iff l_lnno == 0*/
116 char l_paddr
[4]; /* (physical) address of line number */
118 char l_lnno
[2]; /* line number */
122 #define LINENO struct external_lineno
126 /********************** SYMBOLS **********************/
128 #define E_SYMNMLEN 8 /* # characters in a symbol name */
131 /* Allow the file name length to be overridden */
133 #define E_FILNMLEN 14 /* # characters in a file name */
136 #define E_DIMNUM 4 /* # array dimensions in auxiliary entry */
138 struct external_syment
141 char e_name
[E_SYMNMLEN
];
154 #define N_BTMASK (0xf)
155 #define N_TMASK (0x30)
159 union external_auxent
{
161 char x_tagndx
[4]; /* str, un, or enum tag indx */
164 char x_lnno
[2]; /* declaration line number */
165 char x_size
[2]; /* str/union/array size */
167 char x_fsize
[4]; /* size of function */
170 struct { /* if ISFCN, tag, or .bb */
171 char x_lnnoptr
[4]; /* ptr to fcn line # */
172 char x_endndx
[4]; /* entry ndx past block end */
174 struct { /* if ISARY, up to 4 dimen. */
175 char x_dimen
[E_DIMNUM
][2];
178 char x_tvndx
[2]; /* tv index */
182 char x_fname
[E_FILNMLEN
];
190 char x_scnlen
[4]; /* section length */
191 char x_nreloc
[2]; /* # relocation entries */
192 char x_nlinno
[2]; /* # line numbers */
196 #define SYMENT struct external_syment
198 #define AUXENT union external_auxent
202 # define _ETEXT "etext"
205 /********************** RELOCATION DIRECTIVES **********************/
209 struct external_reloc
{
216 #define RELOC struct external_reloc
219 #define DEFAULT_DATA_SECTION_ALIGNMENT 4
220 #define DEFAULT_BSS_SECTION_ALIGNMENT 4
221 #define DEFAULT_TEXT_SECTION_ALIGNMENT 4
222 /* For new sections we havn't heard of before */
223 #define DEFAULT_SECTION_ALIGNMENT 4
This page took 0.040217 seconds and 4 git commands to generate.